Improvement in gang-ploughs



@uiten tates atmt @frn G. C. AVERY, 0F" CONNS CREEK, INDIANA,

I Letters Patent No. 68,277, dated August 27, 1867.

IMPROVEMENT IN GANG-PLOUGHS.

@te Stlgrtnls refont tu in tlgrsefttrn ntmt :mt making part tf tlg: snm.

TO ALL WHOM IT MAY CONCERN:

-Be it known that I, G. C. AVERY, of Conns Creek, county of Shelby, andState of Indiana, have invented certain new and usefulImprovements inPloughs; and Ido -hereby declare that the following:r is a full andexact description of the same, referenceheing had to the annexeddrawings, and to the letters of reference marked thereon, in which'-Figure 1 is a side elevation, and.

Figure 2 a plan view. Y

The nature of my invention consists in the combination and arrangementof such devices as will be hereinafter fully set forth.

A represents the body or framework of my machine, which is provided withwheels B B und seat C. D D D D are levers hingedv to the under side ofthe front cross-piece of frame A. To these levers are attached beams EE, to which the lplonghs F F are secured. G G represent two verticalbnrs, hinged to frame A, :is Shown at letter X in fig. 2.` Said bars areprovided with a loop, a a. Tivo' of the centre `beams E E have staples bb driven in them, which slide in the loops a afas shown in fig.' 2.. arepresents a crosspiece, connecting the vertical hars G G together. a isthe handle, by means of which the driver controls the action of the twocentre ploughs. H H represent two levers, pivoted at the centre of themachine, as indicated in fig. 1. g g are cords, which are secured at ornear the end of said lever. These cords pass around pulley e, overpulleysffff, and down to the levers D D, to which they are attacherLrepresents a serrated plate, by means of which the lever H is retainedin position when the ploughsare elevated.

The operation of my machine is as follows: The driver being seated, andthe machine put in motion, th ploughs are either elevated or lowered, asthe circumstances of' the occasion may require. It will he observed thatthe peculiar arrangement oi' my invention is such that obstructions,such as stumps or stones, may be readily avoided, simply by moving thelever H.

Having thusrdescribed my invention, what I claim, and desire to secureby Letters Patent, is

The hinged levers D D, vertical bars G G, loops a a, cords gg, and lever`H, the whole combined and operated substantially as und for the purposeherein set forth and described.

In testimony that I claim the foregoing as my own, I hereby aix mysignature in the presence of two witnesses.

G. C. AVERY.

Witnesses:

FREDERICK W. AVERY, GEORGE WRIGHT.

